Panel-board for electric-power distribution.



A EL NBL BOARD POR ELECTRIC ww V.2 SEHEN-SHEET 1,

'tnd the consumption circuits.

e mm" ifLLAD E.: AlliiflS. Gill GA GU, lLLINOIS,

ASSGNOR GF OllLHALF T() FREDiCRlCK R.

JENKINS, Ol4` CBCAGO, lLLlNOIS.

no. eresie Speciication of Letters l'ntent.

Patented April 27, 1909.

Apiicetion led October 21, 19GB. Sei-isi' No. 1258,75@

To diseno/m fit may concern.'

Be known that i, MiLLAnD E. Aiins, a lcitizen ot the United States, und n resident ol Chicago, in the county of ook end Stute -illlinois, lieve invented certain non' end useinl improvements in lrenel-Boerds l'oi' ElectrilDOWer 'istnibution and l do heren;T declare that the toller; ing is n full, clear, and exact description thereof, reference being had to the noeoinpfinying drawings, und to the letters nt reference ninrlred thereon, which forni n part of this specification.

This invention relates to e system ei elec- 'iee'l current distribution, wherein e number of users or consumption circuits .fire supplied from e single source and the consumption of the current supplied to seid circuits is :iw

counted :for by metering the suine.

The invention rei'ers to improvements in n system of this character whereby sri-engeinents are inude for the establishment of connections between any or the meter circuits kend any ot said consumption circuits, and

seeiis to provide un improved construction end arrangement of the parts oi n. pnncl board it u central distributing point et which the rearrangement of the circuits is made.

As shown in the dreu'ingsz`li`igure i is u front fece View oi n panel board embodying my invention, showing its connection with the nieter `und consumption ci rcnits. is e resi? fece View of the pnnel Lourd. Fig. il isay longitudinal elevation oi the i enel hoard.

Ll is in end vien' thereof. li", .f3 illustrates n. method of establisliing,Y eleririe: l connection tetvfeen the conductors of the meter i illustre-tes :i plugl constititing pzirt or" smid connection, illustrating th:u dit'erent lengths of plugs for different connections. Fig. 7 is :i

modified forni of connection lieti-.een theE Conductors of the meter und consumption circuits. Fig. 8 rthe ons lzuis to the panel honi-d.

iront fune Yicn' of :t panel bonn showing. .11 1

inodiiied arrangement of the meter und translating circuit (fondu .tors.

My invention is heroin illustra-ted ns designed ior u three wire system, but it will lie understood that it is equnllj.Y :tppliculile to n tivo wire system.

As shown in the drimings, A designiites ny slel) of marble, slate or other iiisulz'uing nuiterini upon y'which thefirmenenti;v i'xed parte oi' tlie panel hour( construction :ne

illustrates menus for iixiirg Fir' Q is mounted, and which constitutes also mi insulating inediuin between the sides oitdii'leient polnrities of the Circuits. The supply minus B, C, i) nre connected, res ectively, to the positive, neutral and negative bus-bans l), c, d tliiouglitli switch E, n'ln'eli lies on the front lince ol the slab A und is ui'ftziched therel to in suitable innnner.

in Fig. oi the drmrings ere shown pairs of meter circui terminals, in tif-.o sets 'with one set of four pairs arranged on nach side the neutral lnis lier, :incl designeted on euch side ns f1, f2, f, f4. Erich puir of seid terminals is adapted for connection with zi inet-er @no terminal ot each puh oi" sind tcrininelsf, f2, 3, j is fuse connected to the mein (through the hers l), d herein shown), while the remaining terminals ci said pairs are connected, respectively, eeoli to one of the stationery conductors oi' ons imi-s ll', H1, H2, .H3 lying et the reni* or" the princi hoord und arranged in diilerent superposed, hut sepa-rated. parallel planes, that is, one behind the other. The coni tion lietween sii-id letter terminals :intl the oondiiotors or 'ous hers H, ill, il?, il* consists of ln .rs f, f ut the beck of the honi-d, oonnecteil in any suitable manner with the bus bers, and pins f7, f7 vwhich pierce the hoard und ext: iid through the inns f end seid last mentioned termine-ls. s shown in il, there ure two sotsof seid bus hers, one :it erich side of the neutral hus ini-r to cordit tlieieoi end fttteehing liolts z extending through the hoard und through nliiied sperturos in the 1uurs tlie other end thereof. Suid hitter bolts poss also through .spacing blocks nl, runde of inside-tin nT inst which the here mu.;V be held the .insulating di unce upnrt.

et Ylhc in e. holts :ire sin lounded ln' insulating bushings a2 incnliichthejr insulated i'roin the buis, :ind the-nut a of tliejioit nears nginst ini suie-ting /n'usiicrsu," /Whicii lio against the resi' 4lince of the reerniost bur. A tiiird wire G1 connects euch meter withthe neutral lriir c to furnish s shunt current lfor operzitingtlfie meter.

Arranged on the side ofthe lios-rd .remote respond with the tiro sets of meier tcrininels. "lhe 'ons hers il, ill, il?, constimeeting bers j und the pins 7P7 :it one end lOU from the bus bars H, H1, H2, H3 are consumption circuit conductors g, g1. Said conductors are arranged in pairs, the conductor g of each pair being connected with one side ofthe consum tion circuit and the conductor g1 With the otlier side of said circuit. Each pair of consumption circuit conductors is adapted to be fuse-connected to an adjacent pair of terminals 7L, h1, h2, h3 belonging to a consumption or load circuit H4. In the construction shown in F ig. 1, the consumption circuit conductors g, g1 are arranged in two laterally separated sets to correspond with the arrangement ofthe bus bar c.

llhe conductor g1 at one side of each consum tion circuit, is connected permanently to tle neutral bus bar c by means of pins cl which may enetrate the board and constitute means tor fastening the neutral bus bar in place if desired. The opposite side of each pair of consumption circuit conductors g, gl

is adapted to be searately connected with ars H, H1, H2, H3 by means of one of a plurality of plugsv I, as shownin Fig. 5. With the consumption circuit conductors g, g1 arranged in sets on opposite sides of the neutral bus bar c, the conductors g1 take the form of elongated bars which extend from one set to the other across the neutral bus bar, While the conductors g may take the form of `short plates arranged in line with and spaced longitudinally of the sets of bus bars H, H1, H2, H9

The pins I extend through alined openings in the conductors g, the board A and the bus bars H, H1, H2, H3. Each plug comprises a shank having at one end a slotted head .i

either of said bus adapted for electrical contact with the conductor g, and provided at its other end with an enlarged screw-threaded portion il. The

shank of the plug is surrounded by an insulating bushing ft2. The apertures 1n said bus ars are screw-threaded to receive the screwthreaded portions 'il of thel plugs and thel diiierent lengths, as indicated in full and dotted linesin F ig. 6, so that by the use of a plug I of proper length consumption circuit conductor g may be Separately connected With either one of said meter bus bars. That is to say, if it be desiied to connect a consumption circuit conductor'g with the bus bar H al plug will be employed having an enlarged screw-threaded portion il which reaches only the bris bai' H:

plugs are made of and no farther; and the enlarged portion of-` said plug will have screw-threaded engagement with only the rbar H. On the other hand, if one of the bus bars in rear-of the bus l bar H is to be connected with said conductoi g, the stud is made of correspondingly greater length so that its enlarged portion @l Will reach to and have screw-threaded engagement with the bps bar desired. In'this construction it Will be observed that a plug of a length to reach beyond the bus bar H i must be threaded through the screu'- threaded apertures of the. bar or bars bctWeen the board A and the bus bar with which it is designed to have final screwthreaded engagement.

In Fig. 7 I have shown a construction wherein the alined openings in the bus bars H, H1, I2, II3 are made of gradually decreasing diameters from the innermost to the outermost bar, the screw-threaded aperture of the innermost bar being made largest. The

plugs I1 used inthe latter construction are made of diiierent lengths, as inthe former construction, and are screw-threaded attheir ends to engage screw-threaded apertures of the -ap ropriate bus bars. The plugs 11 oi at least t ie screw-threaded ends thereof, are made of varying diameters to fit the diferent diameters of the screw-threaded apertures of the bus bars, the plug of the shortest length being made of the greatest diameter and the longest plug being made of least diameter. With this construction each plug may be inserted without obstruction directly to the screw-threaded aperture of the bus bar to which it is designed for electrical contact.

In both constructions it will be observed that the engagement of the connecting plug i With the bus bar is a screw-threaded engage- 1 ment which is preferred by reason of its permanency and the reliability of the electrical connection. Other forms of electrical connection between the plugs and the bus bars may, however, be employed.

By reason of the foregoing construction it will be noted that in the three Wire arrangement herein shown, one terminal of each pair of meter terminals is connected to either the positive or negative supply main and the other terminal is connected to its respective bus bar H, H1, H2, H3, While one conductor of each pair of consumption circuit conductors g, g1 is cnnnected tothe neutral supply main and tlifl other conductor of said pair is adapted for connection, through the plug I or I1 cr the equivalent, to anyone of the bus bars Il', H1, H2, H3. With this arrangement it will be apparent that either of the meters at one side .of the board may be connected in circuit with either of the consumption 'circuits at that side of the board, and that all ef the consum tion circuits at one side of the board may e connected to either one of the associated meters, and that such-connections may be made by simply inserting or reinoving one or.moi'e of said plugsI and without change in the Wiring. f

The arrangement of H2 H3 which, in the instance shown, are meter bus bars, disposed one behind the other, or'in different superposed, but separated parallel planes, and provided with apertures of the board A and conductors g to receive connecting plugs of different lengths,

the bus bars I-I, H1,

g alined apertures arranged in line with `the intervals with alined openings, and the eonreceive conducting plugs and the superductors of the other set being provided vin posed bars being a ertured in alinement alinement therewith with other openings, therewith to receive plugs of different engths and plugs arranged to ex'tend through said to permit any one ot the bars to be connect-,I alined openings to connect any one et' the ed with any one of the conductors of the 70 conductors of one set with any one of the other set. conductors of the other' set. 8. In a panel board fon electrical current 4.' ln a system of electrical current distridistribution, the combination with an insubution including supply mains, meter cir lating body, of two sets of conductors arcuits, one terminal of each being connected ranged one on each side of said body, one 75 to a supply main, translating circuits, one set comprising bars arranged in diHerent terminal oi each being connected to another super osed, but separated parallel planes, supply main of different potential fromthe and t 1e other set being arranged along the iirst, and conductors'one for each of' the relength of said bars, and screw-threaded plugs v ductors of the other set.

maining terminals of the meter circuits and of different lengths arranged to be plugged, translating circuits, the conductors for each through said conductors and bars for screweircu'it being arranged in a set, one oi the threaded engagement with the latter to consets oi' conductors embracing bars arranged nect any one conductor of the one set with in different superposed, but separated parany one of the bars of the other set. allel planes, provided With longitudinally 9. In a panel board for electrical current spaced alined openings, and the other set distributionpthe combination with an insubeing provided in alinement with said openlating body, of two sets of conductors, arings with other openings, and plugs of dii ranged one on each side of said bdy, one set ferent lengths arranged to be plugged from comprising bars arranged in'diiierent superone set to the other to connect any one of the posed ,but separated parallel planes, and the conductors of one set to any one of the eonotherset being arranged along the length of said bars, the said body and the last men-l 5. In a system of electric current distributioned conductors 'being apertured and the tion including supply mains, bus bars and superposed bars being apertured in alinep translating circuit conductors, meter eirment with the a ertures of the body, and cuits, each having one side connected to a plugs of differentilengths arranged to be in` supply main and its other side toa bus bar, serted through Said alined apertures, said translating circuits each having one side plugs being each screw-threaded to engage connected to another of the supply mains screw-threads in the opening of its appropriand it: other side to a conductor, said bus ate bar. bars being arranged in different superposed, 10. ln a panel board for'electrical current but separated planes, and the translating distribution, the combination With an insucircuit conductors being arranged along the lating body, of two sets of conductors arlength of the bus bars', the said conductors ranged one on each side of said body, one set and bus bars' being provided with alined comprising bars arranged in different super: 105 openings arranged to receive plugs of diflerposed, butK separated parallel planes, and ent lengths by which any one of the conthe other set being arranged along the length ductors may be connected with any one of 'ofthe said bars, means for plugging through said bus bars, and plugs screw-threaded for from any one of the conductors of the one engagement with screw-threads in the openset to any one oi the bais of the other set, 110 ings of said bus bars. su ply f main terminals mounted on said in- 6. ln a panel board for electrical current suliating body, means for electrically condistribution, the combination With a body, necting one of said terminals With one set of conductors, and other means for' electrically of `two 'sets of conductors, on said body and connecting another terminal to the othe.n set insulated from each other, one set comprisingY bars arranged in ditl'erenL superposed, but of conductors.

separated parallel planes, and the other set 11. ln' a panel board for electric current being arranged along the iength of said bars, distribution, the combination with supandmeans for plugging through from any porting body, of two sets of conductors supoonductor of the one set 'tofany onel of the ported thereon, one set being insulated from 120 bars of the. other set. l the other set,-one set of said conductors 7. in a panel board for-electrical current comprising bars arranged in different ysndistribution, the combination With an insuper osed but separated arallel planes, and lating body, of two sets of conductors, arsai bars being provided) along .their length ranged one on each side oi said body, one set i with alined apertures, the other set of said comprising bars arranged in different superconductors being arranged along the length posed, but, separated parallel planes, and of the bar 4conductors and apertured in aline# the other set being arranged along the ment with t-he apertures of said bar con length of said bars, the said bod y and the last ductors, and plugs of different lengths armentioned conductors being apertured to l ranged to be inserted througlrthe apertures 13() of the two sets of conductors to Connect any one of the Conductors of one Set to any one of the conductors of the other set.

listribution, the combination with :t supporting bei y, of two sets of conductors supported thereon, one set being insulated from the other set one set` o' Said conductor-sl comprising loars arranged in different Super poseo but separated parallel plaines7 and` said bars being provided along their length conductors being arranged along the length of the bar oenrluetors, and apertured in ailinej ment with the apertures or' sind bar c0ndoctors, plugs of different lengths arranged to be inserted tlirougl. the apertures of 'the two sets of conductors to connect an one oi" j the eonfluctorby or one set to any one of tl'ie 12.A ln a panel beard for electric current" conductors of tlie other Set, insulating 2O sleeves surrounding the Shanks of sii-id plugs and arranged to levare the ends of' the plugs lun-ed lor Contact with the appropriate con ductors of the Snperposerl ln testimony, that l cla-iin the foregoing is my 'ivention lv i-nix my signature in the Y j presence of two witnesses, this 17th day or' witn lined apertures, the other set o' sind October A.. D, 1908.

)ULLA/rit D E. AMES. Witnesses WiLLA'M L` HALL, GEORGE R. l/l'f'irlns. 

